ATA International Product Catalogue

377 25, 50 mm 1", 2" 8 mm 5/16" 30, 40, 50 mm 1", 1.1/2", 2" 30, 55, 80, 110 mm 1", 2", 3", 4" 30, 55, 80 mm 1", 2", 3" ANNULAR CUTTERS Overview annular cutters Weldon shank Overview twist drill Weldon shank TYPE  Specification Application  12-60 mm  15/32-2.23/64" Annular cutters made of HSS-XE special steel + GOLD-TECH treatment. The most-often used uncoated annular cutter for all steels up to a strength of 900 N. Still suitable for stainless steels. 418-433  12-60 mm  15/32-2.23/64" Annular cutters of HSS-XE special steel + 7 different cutting geometries. For all steels up to a strength of 750 N. 434-439  8-25 mm  5/16-63/64" Annular cutters / hole saw combination. For all steels up to a strength of 900 N. 440-441 TYPE  Specification Application  4-32 mm  5/32-1.17/64" Twist drills made of powder steel / HSS-XE-steel / HSS-Cobalt steel. With or without inner cooling for steels up to a strength of 1400 N and for all stainless steels. 442-447 Copper, brass, tin Copper, brass, tin Copper, brass, tin Alu Alu Alu Stainless Stainless Steel Steel Steel < 750 N < 900 N < 900 N < 900 N < 900 N < 10% Si < 10% Si < 10% Si Copper, brass, tin Alu Grey cast iron Stainless Steel < 1400 N > 900 N > 10% Si Drill depths Drill depths Drill depths Drill depths Drill depths OPTIMAL GOOD POSSIBLE Hardox 400 Hardox 450 Hardox 400  7/16-2.1/16" GOLD-DRILL LINE SILVER-DRILL LINE MINI- LINE DRILL- LINE GOLD-DRILL LINE INCH 11 Index 10 9 OIL 8 7 6 5 4 3 2 1